/*
*  Copyright 2019-2020 Zheng Jie
*
*  Licensed under the Apache License, Version 2.0 (the "License");
*  you may not use this file except in compliance with the License.
*  You may obtain a copy of the License at
*
*  http://www.apache.org/licenses/LICENSE-2.0
*
*  Unless required by applicable law or agreed to in writing, software
*  distributed under the License is distributed on an "AS IS" BASIS,
*  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
*  See the License for the specific language governing permissions and
*  limitations under the License.
*/
package me.zhengjie.service.impl;

import me.zhengjie.domain.BookLocation;
import me.zhengjie.exception.EntityExistException;
import me.zhengjie.utils.ValidationUtil;
import me.zhengjie.utils.FileUtil;
import lombok.RequiredArgsConstructor;
import me.zhengjie.repository.BookLocationRepository;
import me.zhengjie.service.BookLocationService;
import me.zhengjie.service.dto.BookLocationDto;
import me.zhengjie.service.dto.BookLocationQueryCriteria;
import me.zhengjie.service.mapstruct.BookLocationMapper;
import org.springframework.stereotype.Service;
import org.springframework.transaction.annotation.Transactional;
import org.springframework.data.domain.Page;
import org.springframework.data.domain.Pageable;
import me.zhengjie.utils.PageUtil;
import me.zhengjie.utils.QueryHelp;
import java.util.List;
import java.util.Map;
import java.io.IOException;
import javax.servlet.http.HttpServletResponse;
import java.util.ArrayList;
import java.util.LinkedHashMap;

/**
* @website https://el-admin.vip
* @description 服务实现
* @author ...
* @date 2020-11-08
**/
@Service
@RequiredArgsConstructor
public class BookLocationServiceImpl implements BookLocationService {

    private final BookLocationRepository bookLocationRepository;
    private final BookLocationMapper bookLocationMapper;

    @Override
    public Map<String,Object> queryAll(BookLocationQueryCriteria criteria, Pageable pageable){
        Page<BookLocation> page = bookLocationRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder),pageable);
        return PageUtil.toPage(page.map(bookLocationMapper::toDto));
    }

    @Override
    public List<BookLocationDto> queryAll(BookLocationQueryCriteria criteria){
        return bookLocationMapper.toDto(bookLocationRepository.findAll((root, criteriaQuery, criteriaBuilder) -> QueryHelp.getPredicate(root,criteria,criteriaBuilder)));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public BookLocationDto findById(Integer id) {
        BookLocation bookLocation = bookLocationRepository.findById(id).orElseGet(BookLocation::new);
        ValidationUtil.isNull(bookLocation.getId(),"BookLocation","id",id);
        return bookLocationMapper.toDto(bookLocation);
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public BookLocationDto create(BookLocation resources) {
        if(bookLocationRepository.findByBarcode(resources.getBarcode()) != null){
            throw new EntityExistException(BookLocation.class,"barcode",resources.getBarcode());
        }
        return bookLocationMapper.toDto(bookLocationRepository.save(resources));
    }

    @Override
    @Transactional(rollbackFor = Exception.class)
    public void update(BookLocation resources) {
        BookLocation bookLocation = bookLocationRepository.findById(resources.getId()).orElseGet(BookLocation::new);
        ValidationUtil.isNull( bookLocation.getId(),"BookLocation","id",resources.getId());
        BookLocation bookLocation1 = bookLocationRepository.findByBarcode(resources.getBarcode());
        if(bookLocation1 != null && !bookLocation1.getId().equals(bookLocation.getId())){
            throw new EntityExistException(BookLocation.class,"barcode",resources.getBarcode());
        }
        bookLocation.copy(resources);
        bookLocationRepository.save(bookLocation);
    }

    @Override
    public void deleteAll(Integer[] ids) {
        for (Integer id : ids) {
            bookLocationRepository.deleteById(id);
        }
    }

    @Override
    public void download(List<BookLocationDto> all, HttpServletResponse response) throws IOException {
        List<Map<String, Object>> list = new ArrayList<>();
        for (BookLocationDto bookLocation : all) {
            Map<String,Object> map = new LinkedHashMap<>();
            map.put("图书馆编号", bookLocation.getLibraryId());
            map.put("isbn", bookLocation.getIsbn());
            map.put("条码", bookLocation.getBarcode());
            map.put("图书馆位置", bookLocation.getLibraryLocation());
            map.put("书本在图书馆的位置", bookLocation.getBookLocation());
            map.put("是否启用 1启用 0未启用", bookLocation.getIsEnable());
            list.add(map);
        }
        FileUtil.downloadExcel(list, response);
    }
}